Results 11 to 20 of about 31,792 (238)
Gaoya dianqi, 2011 介绍了数学形态滤波的基本原理与形态滤波器的构建。针对油纸绝缘典型局部放电故障模型的局部放电信号的分析问题,提出一种基于开、闭运算的级联组合数学形态滤波器的新方法。通过将数学形态滤波器用于复杂局部放电信号中的脉冲干扰的实例分析,说明该方法对局部放电信号的干扰噪声有很好的滤波效果,实现了高频信号无时滞、无相移的滤波处理,表明数学形态滤波对分析局部放电脉冲信号有很好的应用前景。
顾红伟 +4 more
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Zhongguo shiyan zhenduanxue, 2007 目的对髌骨关节软骨进行形态学研究,探讨螺旋CT对关节软骨的最佳成像方法及在关节软骨形态学研究中的应用价值。方法5例新鲜膝关节标本进行螺旋CT容积扫描,将髌骨原始图像行SSD、MPR重建成像后进行关节软骨形态学研究并与解剖标本研究测量结果进行对比,应用线性回归和相关分析统计学分析两种测量方法的差异性。结果正常髌软骨在不同区域厚度不同,CT扫描图像经重建后能良好显示出关节软骨,图像中关节软骨形态轮廓与真实软骨相近,在螺旋CT三维重建图像上行关节软骨厚度测量与标本测量结果比较无统计学差异 ...
应洪亮 +4 more
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Zhongguo shiyan zhenduanxue, 2019 骨髓血细胞形态学检查是通过观察骨髓涂片中细胞的形态以及细胞间的比例关系来检查骨髓细胞数量和质的变化,是诊断造血系统疾病最常用的基本方法。但血细胞形态学研究对象为看不见摸不着的血细胞,学生们理解并掌握起来有相当大的难度,给教师和学生提出了一个不小的挑战。
崔红花 +5 more
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Gaoya dianqi, 2015 高压断路器是电力系统中重要的控制和保护元件,其可靠性对电力系统的安全具有十分重要的意义。高压断路器机械状态监测能够在一定程度上识别断路器的机械状态。合闸线圈电流信号就是机械状态监测信号之一,合闸线圈电流信号包含有重要的时间和状态信息。笔者在数学形态学理论中的基本形态滤波器基础之上构造形态级联滤波算子对线圈电流信号进行滤波去噪,成功地剔除掉了线圈电流信号中存在的尖峰和沟壑,并且最大限度地保留了电流信号波形的结构特征,使滤波后的电流信号波形平滑性较好、误差较小,便于后续的信号特征提取和状态识别 ...
彭鑫霞, 关永刚, 高凯, 徐鹏
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Integrative Conservation, EarlyView.This study examines the Mawphlang Sacred Forest in Meghalaya as a culturally embedded model of community‐led conservation. Drawing on qualitative fieldwork, it highlights how spiritual reverence, sacred taboos, and ancestral authority shape ecological stewardship, complementing formal governance systems.
Mrinal Saikia
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Integrative Conservation, EarlyView.Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee +5 more
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Wildlife Letters, EarlyView.Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi +7 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
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The Hour that Never Comes and the Time that Remains
Journal of Analytical Psychology, EarlyView.Abstract This essay proposes a symbolic and clinical investigation of psychic temporality through two archetypal experiences of time: the hour that never comes and the time that remains. Drawing on analytical psychology, trauma theory and aesthetic philosophy, text explores how certain forms of suffering resist chronological resolution and persist as ...
Daniel Françoli Yago
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The collective application of shorebird tracking data to conservation
Conservation Biology, EarlyView.Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison +71 more
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